Combined door hinge and check.



'NrTRD STATES PATENT OFFICE.

JAMES WILLARD MORRIS, OFNRW YORK, N. Y.

COMBINED DOOR HINGE AND CHECK.

SPECIFICATION forming part of Letters Patent No. 725,752, dated April 21, 1.903.

Serial No. 113,064. (No model.)

To all whom, it may concern:

Be it known that 1, JAMES WILLARD MOR RIS, a citizen of the United States, residing in the borough of Manhattan, city of New York, State ofNew York, have invented certain new and useful Improvements in a Combined Door Hinge andCheck, of which the following is a description.

My invention relates to an improved combined door hinge and check, which may be also conveniently provided with a closingspring, or the latter may be a separate element applied within the other hinge or directly to the door.

My object is to provide and produce an improved combined hinge and check which shall be very simple in construction, and hence capable of being made cheaply, which shall be certain and effective in operation, and where-V in the checking effect'can be adjusted to take place at any desired pointin the closing movement. Y

In order that the invention may be better understood, attention is directed to the accompanying drawings, forming part of this specification, and in which- Figure lis a longitudinal sectional view through the hinge in its preferred form, showing a closing-spring applied thereto and illustrating the parts as they approach the checking position; Fig. 2, a corresponding view of a part of the hinge, illustrating the elements in the checking position; ',Fig.. 3, a similar view showing the valve after the same has` moved out of the checking position to permit the door to close; Fig. 4, a section on the line 4 4 of Fig. 1; Fig. 5,1avsection on the line 5 5 of Fig. l, and Fig. 6a section on the line 6'6- of Fig. 1. v

In all of the above views corresponding parts are represented by the same numerals of reference. Y

The hinge is providedwith the two leaves 1 and 2, the'former carrying the usual barrel 3 and the latter the two knuckles 4 4. A plug 5, screwed into vthe barrel, forms a bearing for the lower knuckle, while a steel sleeve 6, carried by the upper knuckle, bears within the lining of the barrel 3, whereby the two leaves will be permitted to turn pivotally with re-` spect to each other, as will be understood. The interior of the barrel is not finished, but

is permitted to remain in its rough-cast condition, whereby the cost of manufacture of the hinge is very greatly reduced. Carried within the barrel is alining 7, made, prefer ably, of Babbitt metal and formed at its lower part with threads 8, (four being'shown,) having relatively great pitch. Preferably the lining 7 is formed by casting the Babbitt metal or other relatively fusible metal around a threaded core placed within the barrel and which is subsequently screwed out. Byleaving the barrel in its rough-cast condition the lining is prevented from moving relatively thereto during the operation. Mounted in and rigidly secured to the upper part of the sleeve 6 is a ring 9 for receiving the cylindrical upper end 10 of a square rod 11,Which extends downwardly the entire length ofthe barrel and at its lower Aend isy provided with a Step 12, which takes into the plug 5, as shown. A set-screw 13 passes through the upper knuckle 4,'sleeve 6, and ring 9 into the cylindrical head 10 of the `rod 11 to hold these parts rigidly together. A `piston 14 is mounted within the lining 7 and is provided with ribs 15, which engage the threads 8. This piston is provided with a square opening therein, which fits the rod 11, so that the piston will be caused to rotate with said rod, but will be permitted to move longitudinally with respect to the same. The rod 11 is provided with a'valveway 16 therein, in which is fitted a longitudinally-movable valve 17, preferably square in cross-section. This `valve iscut away on either side of a shoulder 18, as shown, which shoulder cooperates lwith a seat 19 on the piston, so that when the shoulder is coincident with said seat a flow of liquid from below the piston to the space above 4itwill be prevented. When, however, the `valve is in its lowermost position to carry the shoulder 13 below the seat 19, liquid will be permitted to flow between the seat and the cut-away portion of the valve above said shouln IOC valve. If the hinge is provided with a closing-spring, the latter may be mounted within the sleeve 6, as shown. Referring to Fig. 1, a coiled closing-spring 24 is illustrated, the lower end of which is anchored within the barrel 3 and the upper end being attached to the ring 9. This latter ring is provided with a series of openings 25, with anyone of which the set-screw 13 may engage. It will be obvious that by turning the ring 9 by any suitable tool and by engaging the set-screw with any one of the openings thereof the desired regulable tension can be applied to the closing-spring 24. A cap 26 preferably covers the regulating-screw 21 and may be secured in position at the top of the hinge in any suitable way, as by means of a set-screw 27 passing through said cap and engaging the upper end of the sleeve 6. A suitable lubricating and non-freezing liquid-as, for instance, oil or glycerin, preferably the former-is introduced within the lining 7 and normally, at least, covers the piston when the latter is in its elevated position, so as to iill the space below the piston.

In operation it will be obvious that as the two leaves 1 and 2 are moved with respect to each other the rod 11 will be turned relatively to the lining 7, so as to rotate the piston 14 in said lining and cause it to reciprocate by reason of the engagement between the ribs 15 and the threads 8. In the closing movement of the door this partial rotation of the piston moves the same downwardly and causes the liquid to be forced upward through the space between the seat 19 and the cut-away portion of the valve 17 above the shoulder 18. This rapid flow of the liquid upwardly `elevates the valve until its movement is stopped by the limitingscrew 21. As soon as the piston'lf has moved downward until the seat 19 comes into coincidence with the shoulder 18 further iow of liquid is stopped and a checking operation takes place. As soon as this check occurs upward iiow of liquid will be arrested, and the Valve 17 will hence be permitted to drop by gravity, again opening the space at the seat- 19 and releasing the liquid from below the piston, which will thus be permitted to move to its lowermost position, thus allowing the door to close. It will be seen that as the cut-away portion of the valve decreases in depth toward the shoulder 18 the door will be brought to the checked position gradually and not with a quick stop. Obviously by regulating the position of the adjusting-screw21 the upward movement ofthe valve 17 will be controlled and the position in the closing operation when the seat 19 and shoulder 18 are coincident will be thus regulated, whereby the desired checking action can be made to take place at any point iu the closing movement. In the reverse movement of the parts the piston 14 will be elevated and the liquid will be permitted to flow from the top to the bottom of the piston between the seat 19 and the cut-away portion of the valve above the shoulder 18. If the check-valve 23 is employed, the passage 22 offers an additional opportunity for this flow of liquid to thereby allow the liquid to entirely fill the space below the piston as rapidly as thev latter is elevated, so that no matter how quickly the door may be opened and closed a checking operation can always be relied upon. If the check-valve 23 were not used, the return of the liquid to the space below the piston might be so retarded that if the door were opened and closed immediately after the check had once operated a sufficient amount of liquid might not exist below the piston to provide for the eective operation of the valve, as explained.

Having now described my invention, what I claim as new, and desire to secure by Letters Patent, is as follows:

1. A combined door hinge and check comprising in combination two leaves, a barrel carried by one leaf, ahinged connection between the second leaf and said barrel, screwthreads in said barrel, a piston engaging said threads and connected to the second leaf, said piston normally presenting au opening between its upper and lower surfaces, and a longitudinally-movable valve normally uncovering said opening but movable into position to close the same when a checking operation is desired, substantially as set forth.

2. A combined door hinge and check comprising in combination two leaves, a barrel carried by one leaf, a hinged connection between the second leaf and said barrel, screwthreads in said barrel, a piston engaging said threads and connected to the second leaf, said piston normally presenting an opening between its upper and lower surfaces, a longitudinally-movable valve normally uncovering said opening but movable into position to close the same when a checking operation is desired, and means for regulating the movement of said valve, substantially as set forth.

3. A combined door hinge and check comprising in combination two leaves, a barrel carried by one leaf, a hinged connection between the second leaf and said barrel, screwthreads in said barrel, a piston engaging said threads and connected to the second leaf, said piston normally presenting an opening between its upper and lower surfaces, a longitudinally-movable valve normally uncovering said opening but movable into position to close the same when a checking operation is desired, and a closing-spring arranged between the second leaf and said barrel, substantially as set forth.

4. Arcombined door hinge and cheek comprising in .combination two leaves, a barrel carried by one leaf, a hinged connection between the second leaf and said barrel, screwthreads in said barrel, a piston engaging said threads and connected to the second leaf, said piston normally presenting an opening between its upper and lower surfaces, a longi- IOO IIO

tudinally-movable valve normally uncovering said opening but movable into position to close the same when a checking operation is desired, a closing-spring arranged between the second leaf and said barrel, and means for regulating the tension of said closingspring, substantially as set forth.

5. A combined door hinge and check, comprising in combination two leaves, a barrel carried by one leaf, a hinged connection between the second leaf and said barrel, screwthreads in said barrel, a piston engaging said threads and connected to the second leaf, said piston normally presenting an opening between its upper and lower surfaces, a longitudinally-movable valve normally uncovering said opening but movable into position to close the same when a checking operation is desired, a closing-spring arranged between the second leaf and said barrel, and means for regulating the tension of said closingspring, substantially as set forth.

6. A combined door hinge and check com-- prising in combination a leaf carrying a barrel, a soft fusible metal lining in said barrel provided with screw-threads, a second leafl hinged to said barrel, a piston engaging said threads and connected with the second leaf, said piston normally presenting an opening between its top and bottom faces, and alvalve normally disclosing said opening but adapted to cover the same when a checking action is desired, substantially as set forth. v

7. A combined door hinge and check comprising in combination a leaf carrying an internally-threaded barrel, a second leaf hinged to said barrel, a -rod connected to the second leaf and extending within the barrel, a piston engaging said threads rotating with said rod and movable longitudinally thereon, and a valve movable longitudinally in said rod, substantially as set forth.

8. A combined door hinge and check comprising in combination a leaf carrying an internally-threaded barrel, asecond leaf hinged to said barrel, a rod connected to the second leaf and extending within the barrel, a piston engaging said threads rotating with said rod and movable longitudinally thereon, a valve movable longitudinally in said rod, and means for limiting the longitudinal Inovements of said valve, substantially as set forth. This specification signed and witnessed this 21st day of June, 1902. v JAMES WILLARD MORRIS.

Witnesses:

FRANKy L. DYER, JN0. RoB'r. TAYLOR. 

